12010021234 has 8 divisors (see below), whose sum is σ = 18310360428. Its totient is φ = 5906567760.

The previous prime is 12010021213. The next prime is 12010021241. The reversal of 12010021234 is 43212001021.

It can be written as a sum of positive squares in 2 ways, for example, as 9594790209 + 2415231025 = 97953^2 + 49145^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12010021234² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49221277 + ... + 49221520.

Almost surely, 2^12010021234 is an apocalyptic number.

12010021234 is a deficient number, since it is larger than the sum of its proper divisors (6300339194).

12010021234 is an equidigital number, since it uses as much as digits as its factorization.

12010021234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98442860.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12010021234 its reverse (43212001021), we get a palindrome (55222022255).

The spelling of 12010021234 in words is "twelve billion, ten million, twenty-one thousand, two hundred thirty-four".